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Solvent-free anticorrosion coating composition curable in seawater

An anti-corrosion coating, solvent-free technology, applied in the preparation of solvent-free anti-corrosion coating compositions, anti-corrosion of structures in ocean water level fluctuation areas, and the field of solvent-free anti-corrosion coating compositions

Active Publication Date: 2016-09-14
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solvent-free anti-corrosion coating composition that can be cured in seawater. This coating composition can solve the problem of maintenance and protection of structures in the tidal range splash zone of the marine environment. The coating of the present invention can be used in wet conditions. Surface coating, can be painted on structural surfaces with low surface treatment quality (such as rusty, watery and old coating surfaces), and can be cured in seawater containing chloride ions, and has excellent corrosion resistance performance

Method used

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  • Solvent-free anticorrosion coating composition curable in seawater

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Effect test

Embodiment 1～ Embodiment 5

[0094] Embodiments 1 to 5: Solvent-free anti-corrosion coating compositions curable in seawater and preparation methods thereof. According to the aforementioned preparation process and the formula in Table 1, the test pieces were prepared and performance tests were carried out.

[0095] Table 1 Example 1~Example 5 formula table

[0096] (parts by weight in the table)

[0097]

Embodiment 6

[0098] Embodiment 6, is substantially the same as embodiment 1-5, but the weight ratio of described A component and B component is 100:30;

[0099] The weight ratio of component A includes: resin: 40; filler: 5; water absorbent: 1; chloride ion adsorbent: 1; rust stabilizer: 5; water-in-oil emulsifier: 0;

[0100] The weight ratio of component B includes: curing agent in water: 60.

Embodiment 7

[0101] Embodiment 7, is substantially the same as embodiment 1-5, but the weight ratio of described A component and B component is 100:80;

[0102] The weight ratio of component A includes: resin: 80; filler: 30; water absorbent: 15; chloride ion adsorbent: 5; rust stabilizer: 30; water-in-oil emulsifier: 1.8;

[0103] The weight ratio of component B includes: curing agent in water: 90.

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Abstract

Solvent-free anticorrosion coating compositions curable in seawater, consisting of two-component materials in which the weight ratio of component A to component B is 100:30‑100:80; characterized by the weight ratio of component A The points include: resin: 40~80; filler: 5~30; reactive diluent I: 5~15; toughening agent I: 5~20; Rust agent: 5~30; water-in-oil emulsifier: 0.1~1.8; other additives: 0.8~6.1; the weight ratio of component B includes: curing agent in water: 60~90; reactive diluent II: 5~20 ; Toughener II: 5~20; Coupling agent: 0.5~1.2. The coatings of the present invention can be applied to wet surfaces, rusty surfaces, and can be cured in salt water. The invention is a solvent-free coating, which has the function of absorbing moisture, chloride ions and rust conversion on the surface of a substrate.

Description

technical field [0001] The invention belongs to the technical field of marine anti-corrosion coatings, and relates to a solvent-free anti-corrosion coating composition that can be cured in seawater, and is especially suitable for anti-corrosion of structures in marine water level fluctuation zones. The invention also relates to a preparation method of the solvent-free anticorrosion coating composition. Background technique [0002] In the ocean tidal range splash zone environment, the fluctuation of the tide level makes it difficult to maintain and protect the concrete structures and steel structures in this area. The area is wet and dry alternately, and the surface treatment is difficult to meet high standards. Short, protective materials need to be solidified in seawater, so the performance requirements for anti-corrosion materials are high. [0003] Anti-corrosion measures such as spraying elastomeric paint, thick coat paint, fiberglass cladding, and plastic jacket cladd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 孙红尧孙高霞李森林徐雪峰单国良
Owner NANJING HYDRAULIC RES INST